Chapter 7
Cable Testing Fundamentals
7-29
The Power Sum ACR measurements are calculated by summing the NEXT
between a selected pair and the other three pairs in the same cable sheath.
ACR and Power Sum ACR Errors
A large difference reading is desirable, since it indicates a strong signal and little
noise interference.
Troubleshooting ACR and Power Sum ACR Problems
Refer to the NEXT and Attenuation troubleshooting suggestions in this chapter.